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Derivative Instruments and Hedging Activity (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Derivative instruments and hedging activity for the period [Abstract]      
Impact of foreign exchange rates on debt instruments recorded in other comprehensive income $ 3,091 $ 13,661 $ (28,871)
Maximum [Member]      
Derivative instruments and hedging activity for the period [Abstract]      
Number of months for contracts to mature 18 months    
Forward Exchange Contracts [Member] | Maximum [Member]      
Derivative instruments and hedging activity for the period [Abstract]      
Number of months for contracts to mature 18 months    
Forward Exchange Contracts [Member] | Cash Flow Hedging [Member]      
Derivative instruments and hedging activity for the period [Abstract]      
Derivative, fair value $ 59,900 76,000  
Foreign Currency Denominated Debt, Net Investment Hedging [Member]      
Derivative instruments and hedging activity for the period [Abstract]      
Carrying value of foreign denominated debt 363,400 366,500  
Impact of foreign exchange rates on debt instruments recorded in other comprehensive income $ 3,100 $ 13,700